Oil burner for stoves



May 1, 1923. 1,453,908

w. H. BOZARTH OIL BURNER FOR STOVES Filed July 26. 1921 2 Sheet-Sheet 1May 1, 1923. 1,453,908

w. H. BOZ ARTH OIL BURNER FOR s'rovas I Filed JJUly 26. 1921 2Sheets-Sheet 2 W/Yfloz ii Patented May 1, 1923.

XVILLIIIIAM' n. Boast-RTE, or VINELAND, NE 'JEBSEY.

OIL BURNER FOR STOVES.

Application filed July 26, 1.921. Serial No. 48?,714.

To all whom it may concern Be it known that 1, WILLIAM H. 'BOZARTH,

the inner side of thejbu'rner; v

, Fig; 3-is a view similar to Fig. 2 'wi'tli the 7 base and ovenheat-ingburner removed. i

resident of Vineland, inthe county of Cumberla n'd and State of NewJersey, citizen of the United States, have invented certain new anduseful Improvements in Gil Burners for Stoves, of which the following isa specification.

My present invention relates to oil burners for stoves, and particularlyto a burner structure to be fitted in the standard type of kitchen rangeor cook stove.

An object is to provide a burner which can be readily fitted in place inastove and which will heat the stove top and-also the oven after themanner intended in the use of coal, wood, or like fuel.

Another main object is to provide a burner and generator. structurewhich are so associated that the gas is discharged to a central manifoldfrom which the gas passes to the two stove burners and to a burnersupplying heat to the generator.

A further object is to provide a burner of this type which is soconstructed that oil supplied to the burner is converted into gas whichgas supplies'the flame.

A still further object is to so construct the parts that the supply ofgas can be directed in full volume to either the burner heating thestove topfor the oven burner, or these burners can be operated together.

Another object is to provide for the supply of steam-with the gas tothus give a better mixture and guard against the formation of carbon,and to arrange for generation of the steam by utilizing heat resultantfrom the operation of the burner.

Yet another object lies in providing for a proper supply of steamandoil, controlled by a single valve, during the operation of theburner, and in arranging for the supply of oil alone for starting theburner.

Yet a further object resides in providing a gas discharge from thegeneratorv so arranged that any particles of extraneous matter will beheld back and danger of clogging is thus obviated.

With these and other objects in view, which will be apparent from thedrawing, specification and claims, this invention includes certain novelfeatures of construction and combinations ofparts which will now be setforth.

In the drawings:

Figure 1 is a top plan view of a burner constructed in accordancewithmy'inventioh, Fig. 2 1s a. view inelevat on looking from Fig. 4 is.a sectional View mime of Fig.2. 1 I Fig. his a vertical'sectional viewon line 5 5 at Fig; 2.

Fig. 6 is a horizontal view through the;

case of the generator burner showing the ar} I rangen'ient of the steamgenerating 'coil.

Fig. 7 is a sectional view through the gas distributing manifold.

Fig. 8 a "fragmentary sectional through the, air'bo'x and gas'di'schargeend of the generator.

Fig. 9 is a hor'z'ontal sectional V through the oiland steam controlvalve.

F 1g; 10 is a vertical sectional View through the structure inFig. 9.. Ii

l The structure is supported onthe'two base or leg members 1' and 2, theoven heating burner 3' being mounted directly on theleg members and thetopfb urner 41: being: carried. which is supported by.

bya gas manifold 5 the l eg'members.

The top burner consists ofthe two 'elo'ri-j;

gated burner sections 5 and 6 wh i'c h have the circular openings andseats 7 formed alone h n; I ength re e ve" e t ted burner d1sCSY8 ofrefractory material, screens 9 being l tin ed beneath the" was discs,and these discs being setto project above the top of the burner members.I

The oven heating'burner 3 consists of an elongated case having aplurality of op n,

ings "10in which the perforated burner d sc's t 1 1 are seated" afterthe manner. of the discs 8, screens being also provided beneath the.

discs 11. In use the burner meniber's 3, 5,;

and 6 are filled with gas. anfd'the screensbeg neath the burner discsscreen this gas" as it passes to, the burners and at; theisame timeprevent the flame from car'ryi rigjbacli to cause backfiring. The burner3: is preferably made curved on itsouter andtopfedges, and the recesses10 are so formedthat discs llare disposedat an angle, thisi arerangement being made to directthe flames outwardly at an angleand. tothus heat the oven at. the proper point. i

Between the sections'5. and 6 of. the top- I burner ess enerate t e 2disposed, this tube. being of thin brass or. other" suit? able materialand having a core therein f t ifs to carry the oil. A generating burner14 is disposed beneath the generator tube 12 and is provided with thelongitudinal burner slots 15, a central slot being preferably formeddirectly beneath the generator tube and a slot being provided on eachside of the center so that the flame will strike and curl around orenvelop the tube to heat all sides. Wicks 16 are provided for startingthe generator.

At its discharge end generator tube 12 has a box 17 secured in place,this box being formed with a depending portion and having a centralbafile wall 18 extending down from its top into this depending portion.The gas discharge opening 19 is on the opposite side of the baffle wall18, and as this opening is extremely fine the volume of gas in box 17 ismore or less quiet so that any particles will settle into the lower endwhere the gas passes beneath baflie wall 18, and thus danger of thedischarge opening 19 or the burners being clogged is obviated.

' The gas settling and discharge box is fitted in an opening 20 providedin an air box 21, which air box is open at 22 to the atmosphere. Acurved gas supply pipe 23 is connected to open into the air box in linewith the gas discharge opening 19 of box The pipe 23 is curveddownwardly and inwardly and is connected with the manifold 5 so that gasgenerated in tube 12 and mixed with air in box 21 is supplied anddischarged directly into the manifold.

This manifold, as best shown in Figs. 5 and'7, has branches 24 and 25which lead to and connect with the two portions 5 and 6 of the topburner 4, a branch'26 which connects with the oven burner 3, and abranch 27 which leads to the generator burner 14. By this arrangementthe manifold has connection to supply gas to each of the burners. Thegenerator burner 14 will be kept in full flame continuously during theuse of the burner, and any control of the gas supply at this point willbe accomplished through manipulation and regulation of the oil supply,however it is desirable that provision be made for directing and varyingthe flow of gas to the burners 5, 6, and 8, and with this in mind Iprovide butterfly valves 28, 29, and 30 in the branches 24, 25, and 26.As shown in Fig. 7 these valves are to be set in such a. manner thatwhen valves 28 and 29 are open valve 30 will be closed, and the reverse,an intermediate position being calculated to give a full flow throughall of the branches. To accomplish this manipulation of the valves 1provide operating arms 31, 32, and 33 upon the valve stems, with a pushrod 34 connectmasses ed to operate the valves 28 and 29 and a link 35coupling valve 30 to be moved therewith. it has been found by repeatedand exhaustive tests that a butterfly valve gives excellent results inthis connection as the operation is single and there is no objection toleakage which will maintain a small flame at the burner when the valveis closed. Other valve structure and operating mechanism might howeverbe used in accomplishing this result. I I

While the box 17 will catch foreign matter, a blow-off valve 36 might beconnected in the bottom of the manifold for blowing ofi condensation.Also any type of safetyvalve might be provided in the steam pipe 39 toguard against excessive pressure.

While this burner will operate etficiently and economically upon oilbeing supplied to the generator, it has been found advantageous tomaintain a supply of steam as this accomplishes a better gas mixture andprevents formation of carbon. During the operation of the burner hot gasis supplied to the generator burner 14, and a coil 37 l is arrangedwithin the case of the burner 14 to generate steam. Water is suppliedthrough a pipe 38 to the coil 37, and the steam is discharged through asteam pipe pipe 41 with generator tube 12, and this valve casing has aneedle valve 42 controlling the main passage thereof. Oil and steam.branches 43 and 44 communicate with the main passage, opening throughthe seat of valve 42. Connection is made through an oil pipe 45 from asuitable oil supply, and the steam pipe 39 connects with passage 44. Bythis arrangement the flow of oil and steam will be simultaneouslycontrolled and the proper proportions will be maintained, it of coursebeing understood that valves can be introduced in pipes 39 and 45, or atother suitable points where adjustments may be desired or necessary.

In starting operation of the burner oil only will be supplied to thegenerator tube, and for starting this oil may be supplied through abranch 46 leading to the main passage of the valve casing, an oil pipe47 being connected with the passage, and a needle valve 48 controllingthe flow of oil therethrough.

In the use of my improved structure the burner will be fitted in thefire box of an oridnary type of kitchen range or cook stove, with pushrod 34 extending through one of the draft slots and pipe 44 run into theburner through any suitable opening. In starting the burner a volatileliquid is poured onto the wicks 16 and when the generator tube 12 isproperly heated valve 48 is opened to supply oil from pipe 47. Gas isgenerated and is supplied to burner 14, and also to burners 3, 5 and 6.As the A valve casing 40 is connected by a heated gas flows into thecasing of burner 14 around coil 37 steam is generated therein, and whenthe proper heat is attained valve 42 is opened and valve 48 is closed.Steam and oil are then supplied through pipe 41 to generator tube 12 andthe burner is continued in operation. By manipulation of I push rod 34:the butterfly valves 28 and 29,

as a pair, and valve are shifted as hereinbefore described to give afull supply of gas to either the top or the oven burner, or to leave thepassages open to both.

WVhile, in the foregoing, I have described specific embodiments, andhave mentioned only certain possible modifications, it will beappreciated that in practice I do not limit myself to such specificdetails as herein set forth, but may resort to any practicalmodifications falling within the scope of the invention as defined inthe appended claims.

I claim: v

1. An oil burner for cook stoves including with a gas consuming burnerto heat the top of the stove, a gas consuming burner to heat the oven, avalve arrangement by which the supply of gas is opened tov each of theburners and the gas is cut off from one burner while the remainingburner is in full flame, and a single operating means by which the valvemechanisms are simultaneously moved and set.

2. An 011 burner for cook stoves lncluding with a gas consuming burnerto heat the top of the stove, a gas consuming burner to heat the oven, avalve arrangement by which the supply of gas is opened to each of theburners and the gas is out off from one burner while the remainingburner is in full flame, a common manifold supplying gas to saidburners, a single operating means by which the valve mechanisms aresimultaneously moved and set and a generator discharging gas to themanifold.

3. An oil burner for cook stoves including with a gas consuming burnerto heat the top of the stove, a gas consuming burner to heat the oven, avalve arrangement by which the supply of gas is opened to each of theburners and the gas is cut off from one burner while the remainingburner is in full flame, a common manifold supplying gas to saidburners, a single operating means by which the valve mechanisms aresimultaneously moved and set, a generator discharging gas to themanifold, and a gas burner for said generator receiving gas supply fromthe manifold.

4. An oil burner including with top and side burners, a gas manifoldsupplying to said burners, generator structure to supply gas to themanifold, means to direct the full volume of gas in the manifold toeither of said burners selectively and to both burners in equal volumeas desired, a generator burner also supplied from the gas manifold,

and a steam generating coil within thegen-J' erator burner. I

5. An oil burner. including wlth gas consuming burner generatorstructure to supply 1 gas to said burner, a valve casing connected withthe generator, a needle valve 111 sa1d casing, and Oll and steam supplypipes connected with the casing in communlcatlon with passages openingthrough the valve seat.

6. An oil burner including with gas con-* suming burner generatorstructure to supply p gas to sa1d burner, a valve casing connected withthe generator,a needle valve in said casing, oil and steam supply pipesconnected with the casing in communication withpassages opening throughthe valveseat, and

an independent'oil supply to the casing to be used for starting thegenerator.

7. An oil burner including with 'gas con-.

sunning burners, generator structure to volat1l1ze oil to supply gas tosa1d burners an air box through'which the gas passes to take 8. An oilburner including with top-and 7 side gas consuming burners, a generatorstructure to volatilize oil to supply gasto the burners, a generatorburner, a manifold to which the gas is supplied from the'generatorprovided with branches leading to the top and side burners and thegenerator burner, butterfly valves controlling the passages to the topand side burners, 'a single valve operating meansto close the passage toone burner when the passage to the other is open and to'set the valvesin intermediate positions where gas is supplied to all. the

burners.

9. An oil burner including with gas consuming burners, a gas generator,a generator burner, a manifold to which the gas is discharged from thegenerator connected to supply gas to the main and generator. burners,.asteam generatmgcoll within the casing of the generator burner, a valvecasing connected with the generator and having oil and steam passagesopenmg therelnto through the valve seat, a connection fromthe steamgenerating coil to the steam passage, an oil supply connection to theoil passage, and a needle valve to close against the seatwithin thecasing and to give equal control at the oil and steam passages.

In testimonywhereof I hereunto aflix my if signature.

WM. H. BOZARTH.

